body,ul{  /*取消浏览器内间距  外间距*/
    margin: 0;  /*外间距*/
    padding: 0;
}

ul.nav{
    display: block;
    list-style: none;
    height: 150px;
}

.nav .first-menu{
    float: left;
    width: 60px;
    height: 40px;

    line-height: 40px;
    text-align: center;
}
.nav .first-menu>a{
    display: inline-block;
    width: 100%;
    height: 100%;
    text-decoration: none;
    color: #585858;
    font-size: 10px;
}

.nav .first-menu>a:hover{
    font-weight: bolder;
    color: crimson;
}

.nav .second-nav{
    display: none;  /*不显示*/
    width: 60px;
    list-style: none;
    background-color: #f1f1f1;
}

.nav .second-nav li{
    width: 100%;
    height: 40px;
    line-height: 40px;
}

.nav .second-nav li a{
    display: block;
    width: 100%;
    height: 100%;
    font-size: 8px;
    text-decoration: none;
}

.nav .second-nav li a:hover{
    background-color: #e2e2e2;
}


/*鼠标悬浮在first-menu 上，紧跟他的二级菜单要显示*/

.first-menu:hover >.second-nav{
    display: block;
}


/*====================搜索引擎=======================*/
.search-area{
    width: 538px;
    height: 90px;


}

.search-form{
    width: 80%;
    height: 36px;
    /* background-color: springgreen;*/
    margin: 0 auto;
    position: relative;
    top:20px;

}

/*单行文本框*/
.search-form .keyword{
    width: 300px;
    height: 100%;
    border: none;
    border-radius: 5px;
    padding-left: 10px;
    outline: 2px solid black;
    float: left;
    margin-right: 10px;
}

.search-form .search-btn{
    display: inline-block;

    width: 50px;
    height: 38px;
    background-color: seashell;
    border: none;
    border-radius: 5px;
    float: left;
}

/*=====================3. 热门商品=============================*/
/*热门商品标题*/
.hot-pro-title{
    display: block;
    width: 100%;
    height: 80px;
    background-color: #e6e6e6;
    font-weight: 200;
    line-height: 80px;
}

.pro-lists{
    width: 75%;

    height: 800px;
    /* background-color: skyblue;*/
    margin: 0 auto;  /*内部盒子 居中*/
}


.pro-lists ul{
    width: 100%;
    height: 100%;
    list-style: none;
}

.pro-lists li{
    width: 240px;
    height: 400px;
    border: 1px solid #dedede;
    float: left;
    margin-right: 60px;
    margin-bottom: 40px;
}

/*商品图片*/
.pro-lists .pro-img{
    display: block;
    width: 220px;
    height: 220px;
    /*  background-color: salmon;*/
    margin-left: 10px;
    margin-top: 30px;
}
/*图片的大小与父容器 一样大*/
.pro-img img{
    width: 100%;
    height: 100%;
}

.pro-lists .pro-price{
    width: 100%;
    height: 30px;
    color: red;
    font-weight:200;
    /* background-color: springgreen;*/
    text-align: center;
    line-height: 30px;
    font-size: 20px;
}

.pro-lists  .pro-name{
    width: 100%;
    height: 20px;
    font-size: 12px;
    color: #646464;
    /* background-color: sandybrown;*/
    overflow: hidden;
    line-height: 20px;
    text-align: center;
}

.pro-lists .shop-info a{
    text-decoration: none;
    color: #797979;
}
.pro-lists  .shop-info{
    width: 100%;
    height: 40px;
    /*  background-color: fuchsia;*/
    line-height: 40px;
    font-size: 10px;
    text-align: center;
}

.shop-info .shop-logo{
    display: inline-block;
    width: 18px;
    height: 18px;
    background-color: chartreuse;
    margin-top: 11px;
    margin-left: 10px;
}

/*立即购买与购物车区域*/
.pro-lists  .pro-operate{
    width: 100%;
    height: 27px;
    /*background-color: #ddff2f;*/

}

.pro-operate a{
    display: inline-block;
    width:100px;
    height: 100%;
    /*  background-color: red;*/
    font-size: 10px;
    text-decoration: none;
    color: red;
    line-height: 27px;

}
.pro-operate a i{
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 1px solid black;
    position: relative;
    top: 5px;
}

.pro-operate a:first-child{
    margin-left: 20px;
}




